January weather in Ennis, MT
The average temperature in Ennis in January is 24.6°F (15.1°F–34.0°F). Average precipitation: 0.45 inches. Average snowfall is 6.5 inches.
January is a winter month in Ennis, and is cooler than the annual average of 42.7°F. Daily temperatures swing about 18.9°F between overnight low and afternoon high. Expect about 5 days with precipitation. Daylight averages about 8h 54m. For travel, January is cold.
Avg High
34.0°F
Avg Low
15.1°F
Precipitation
0.45 in
Snow
6.5 in
January records in Ennis
| Date | Record High | Record Low | Record Precip |
|---|---|---|---|
| January 1 | 53.1°F (2026) | -26.0°F (1942) | 0.40 in (1997) |
| January 2 | 57.0°F (1918) | -20.0°F (1924) | 0.39 in (1955) |
| January 3 | 55.0°F (1918) | -25.1°F (1950) | 0.32 in (1921) |
| January 4 | 54.0°F (1918) | -26.0°F (1942) | 0.24 in (1940) |
| January 5 | 52.0°F (2001) | -29.9°F (1979) | 0.20 in (2022) |
| January 6 | 52.0°F (1954) | -25.1°F (1979) | 0.22 in (1989) |
| January 7 | 55.0°F (1945) | -31.0°F (1937) | 0.20 in (1995) |
| January 8 | 50.0°F (2001) | -31.0°F (1937) | 0.32 in (1942) |
| January 9 | 54.0°F (1953) | -29.0°F (1973) | 0.16 in (2025) |
| January 10 | 52.0°F (1941) | -27.0°F (1949) | 0.10 in (2018) |
| January 11 | 53.1°F (1953) | -27.9°F (1963) | 0.60 in (1997) |
| January 12 | 55.0°F (1953) | -29.9°F (1963) | 0.21 in (1932) |
| January 13 | 52.0°F (1983) | -40.0°F (2024) | 1.12 in (1928) |
| January 14 | 57.0°F (2026) | -35.0°F (2024) | 0.08 in (1918) |
| January 15 | 57.0°F (2026) | -29.9°F (2024) | 0.37 in (1995) |
| January 16 | 55.0°F (2026) | -29.0°F (1930) | 0.37 in (1952) |
| January 17 | 53.1°F (1961) | -43.1°F (1930) | 0.23 in (1931) |
| January 18 | 54.0°F (1920) | -38.0°F (1943) | 0.16 in (1918) |
| January 19 | 52.0°F (1920) | -31.0°F (1963) | 1.20 in (1937) |
| January 20 | 55.0°F (2005) | -36.9°F (1935) | 0.75 in (1930) |
| January 21 | 53.1°F (2005) | -29.0°F (1927) | 0.19 in (1952) |
| January 22 | 61.0°F (1981) | -27.0°F (1962) | 0.45 in (1969) |
| January 23 | 57.0°F (1981) | -34.1°F (1929) | 0.40 in (1989) |
| January 24 | 60.1°F (2005) | -29.0°F (1949) | 0.10 in (1943) |
| January 25 | 54.0°F (1995) | -29.9°F (1949) | 0.25 in (1975) |
| January 26 | 53.1°F (1935) | -32.1°F (1957) | 0.64 in (1918) |
| January 27 | 59.0°F (2015) | -29.0°F (1957) | 0.50 in (1995) |
| January 28 | 59.0°F (2015) | -32.1°F (1929) | 0.24 in (2023) |
| January 29 | 57.9°F (1931) | -31.0°F (1951) | 0.32 in (2008) |
| January 30 | 57.9°F (1935) | -25.1°F (1979) | 0.32 in (1918) |
| January 31 | 60.1°F (2024) | -27.9°F (1918) | 0.16 in (1978) |